Hyundai Porter2 D4cb P0087 Fuel rail/System pressure too low,P0102 P0193.

P0102 Mass or volume air flow "A" circuit input low.
P0193 Fuel rail pressure sensor circuit input high.
2,400rpm low power
di umaandar kung di tinutulak ang sasakyan
mag redondo piru ayaw mag andar.
engine crank but won't start
defective Fuel Injector
replace 4pcs.fuel Injector
replace Mass airflow.